Piotr Rachtan
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7
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
19
DUV-index+ ?Largest integer N such that the race distances provide at least N complete segments of N km in total. A single long race may therefore contribute several segments. See the DUV-Index tab for the detailed calculation. calculation details
1
Countries visited ?
United States
73,4%
Rank quotient ?This runner's calculation uses 7 eligible race(s): Σ(rank − 1) = 417; Σ finishers = 568. 417 / 568 × 100 = 73.42%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed7
Km — ultra races424 km
Longest race80,5 km
16th Stone Mill 50 Mile Run — 8/11/2025
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Trail100,0%
HISTORY
7 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2026 | ||||
| 19.09 | 40mi | 9:41:04 h | 12 | |
| 2025 | ||||
| 08.11 | 50mi | 12:47:05 h | 164 | |
| 2024 | ||||
| 19.10 | 50km | 7:53:59 h | 121 | |
| 04.05 | 12h | 77.892 km | 25 | |
| 13.04 | 50km | 7:45:26 h | 56 | |
| 02.03 | 8h | 53.108 km | 24 | |
| 2023 | ||||
| 08.10 | 8h | 48.280 km | 22 | |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 8/11/2025 | 16th Stone Mill 50 Mile Run | 80,47 | ×4 |
| ✓ 2 | 4/5/2024 | 6th White Lake Ultras 12 Hour Race | 77,89 | ×4 |
| ✓ 3 | 19/9/2026 | 19th Trails 4 Tails 40 Mile Run | 64,37 | ×3 |
| ✓ 4 | 2/3/2024 | 3rd The Dark Side 8 Hour Ultra | 53,11 | ×2 |
| ✓ 5 | 19/10/2024 | 11th Patapsco Valley 50K | 50,00 | ×2 |
| ✓ 6 | 13/4/2024 | 18th Gunpowder Keg Ultra | 50,00 | ×2 |
| ✓ 7 | 8/10/2023 | 10th Rick O'Donnell 8-hour Ultra Challenge | 48,28 | ×2 |